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97 Commits

Author SHA1 Message Date
Nate Begeman
063d88d6fb Add vector versions of some existing scalar transforms to aid codegen in matching psign & pblend operations to the IR produced by clang/gcc for their C idioms. 
llvm-svn: 122105
 2010-12-17 23:12:19 +00:00
Dan Gohman
7c7b24af4d Reapply r121886, and also update DecomposeGEPExpression to keep 
it in sync.

llvm-svn: 121895
 2010-12-15 20:49:55 +00:00
Dan Gohman
4f6b802044 Revert r121886. DecomposeGEPExpression needs to be kept 
in sync.

llvm-svn: 121892
 2010-12-15 20:39:25 +00:00
Dan Gohman
8b09daa387 Strengthen GetUnderlyingObject using InstructionSimplify. 
While LLVM's main design is that analysis code shouldn't
go out of its way to understand code which hasn't been
InstCombined, analysis utility routines like this can
find themselves being called in the middle of transform
passes when instcombine hasn't had a chance to run.

llvm-svn: 121886
 2010-12-15 20:10:26 +00:00
Dan Gohman
295ba3ab26 Move Value::getUnderlyingObject to be a standalone 
function so that it can live in Analysis instead of
VMCore.

llvm-svn: 121885
 2010-12-15 20:02:24 +00:00
Jay Foad
79e18ed269 PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and 
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

llvm-svn: 121120
 2010-12-07 08:25:19 +00:00
Jay Foad
789e8ac4f7 PR5207: Rename overloaded APInt methods set(), clear(), flip() to 
setAllBits(), setBit(unsigned), etc.

llvm-svn: 120564
 2010-12-01 08:53:58 +00:00
Chris Lattner
58b829f94c move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
llvm-svn: 120476
 2010-11-30 22:25:26 +00:00
Jay Foad
c663d7e4f6 PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
llvm-svn: 120413
 2010-11-30 09:02:01 +00:00
Chris Lattner
4dccd368f3 fix PR8063, a crash in globalopt in the malloc analysis code. 
llvm-svn: 113109
 2010-09-05 17:20:46 +00:00
Chris Lattner
bd80bd5d69 move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.

llvm-svn: 111433
 2010-08-18 22:07:29 +00:00
Daniel Dunbar
3d68ce9eeb Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The 
form of", it doesn't pass tests.

llvm-svn: 111385
 2010-08-18 18:43:08 +00:00
Chris Lattner
2d584f0b0e move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

llvm-svn: 111375
 2010-08-18 18:22:17 +00:00
Chris Lattner
49d0f29752 fix PR7589: In brief: 
gep P, (zext x) != gep P, (sext x)

DecomposeGEPExpression was getting this wrong, confusing
basicaa.

llvm-svn: 111352
 2010-08-18 04:28:19 +00:00
Gabor Greif
b86c04f740 use ArgOperand accessors 
llvm-svn: 106697
 2010-06-23 23:38:07 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Gabor Greif
e7d6812008 reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Gabor Greif
2e18d34d80 reapply r101364, which has been backed out in r101368 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397
 2010-04-15 20:51:13 +00:00
Gabor Greif
6022150477 back out r101364, as it trips the linux nightlybot on some clang C++ tests 
llvm-svn: 101368
 2010-04-15 12:46:56 +00:00
Gabor Greif
428ca23bbd rotate CallInst operands, i.e. move callee to the back 
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101364
 2010-04-15 10:49:53 +00:00
Dan Gohman
5c72d507d7 Constify GetConstantStringInfo. 
llvm-svn: 101298
 2010-04-14 22:20:45 +00:00
Evan Cheng
34c5c9af6f Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions. 
llvm-svn: 98416
 2010-03-13 02:20:29 +00:00
Eric Christopher
3e3c445c81 Move GetStringLength and helper from SimplifyLibCalls to ValueTracking. 
No functionality change.

llvm-svn: 97793
 2010-03-05 06:58:57 +00:00
Duncan Sands
1b33dd3c83 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Duncan Sands
2acaf3609c Uniformize the names of type predicates: rather than having isFloatTy and 
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
 2010-02-15 16:12:20 +00:00
Duncan Sands
6f0edf859c It looks like the changes to the SRem logic of SimplifyDemandedUseBits 
(fix for PR6165) are needed here too.

llvm-svn: 94801
 2010-01-29 06:18:37 +00:00
Chris Lattner
944f9c4ac1 teach ComputeNumSignBits to look through PHI nodes. 
llvm-svn: 92964
 2010-01-07 23:44:37 +00:00
Benjamin Kramer
0ba7479f2c Move remaining stuff to the isInteger predicate. 
llvm-svn: 92771
 2010-01-05 21:05:54 +00:00
Chris Lattner
ea6ba0d59b Fix GetConstantStringInfo to not look into MDString (it works on 
real data, not metadata) and fix DbgInfoPrinter to not abuse
GetConstantStringInfo.

llvm-svn: 91444
 2009-12-15 19:34:20 +00:00
Mon P Wang
91ac05d480 Fixed an assertion failure for tracking sext of a vector of integers 
llvm-svn: 90290
 2009-12-02 04:59:58 +00:00
Chris Lattner
f825d5d176 implement a FIXME: limit the depth that DecomposeGEPExpression goes the same 
way that getUnderlyingObject does it. 

This fixes the 'DecomposeGEPExpression and getUnderlyingObject disagree!' 
assertion on sqlite3.

llvm-svn: 90038
 2009-11-28 15:12:41 +00:00
Chris Lattner
e7056c8cde limit the recursion depth of GetLinearExpression. This 
fixes a crash analyzing consumer-lame, which had an "%X = add %X, 1"
in unreachable code.

llvm-svn: 90000
 2009-11-27 08:32:52 +00:00
Chris Lattner
ce573daf09 Implement PR1143 (at -m64) by making basicaa look through extensions. We 
previously already handled it at -m32 because there were no i32->i64 
extensions for addressing.

llvm-svn: 89959
 2009-11-26 18:53:33 +00:00
Chris Lattner
a403a7eddc fix two transposed lines duncan caught and add an explanatory comment. 
llvm-svn: 89958
 2009-11-26 18:35:46 +00:00
Chris Lattner
f7a0da351e this todo is resolved. 
llvm-svn: 89957
 2009-11-26 17:14:10 +00:00
Chris Lattner
2178a80b90 move DecomposeGEPExpression out into ValueTracking.cpp 
llvm-svn: 89956
 2009-11-26 17:12:50 +00:00
Chris Lattner
9646ffc9a2 remove some redundant braces 
llvm-svn: 89912
 2009-11-26 01:50:12 +00:00
Nick Lewycky
8cbd0c3156 Remove unused LLVMContext. 
llvm-svn: 89642
 2009-11-23 03:29:18 +00:00
Dan Gohman
f3ab031fde Simplify ComputeMultiple so that it doesn't depend on TargetData. 
llvm-svn: 89175
 2009-11-18 00:58:27 +00:00
Victor Hernandez
89c04dbe2f Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base 
llvm-svn: 86675
 2009-11-10 08:28:35 +00:00
Victor Hernandez
8428eb5720 Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary. 
llvm-svn: 84969
 2009-10-23 21:09:37 +00:00
Victor Hernandez
a25a2890fa Remove MallocInst from LLVM Instructions. 
llvm-svn: 84299
 2009-10-17 01:18:07 +00:00
Dale Johannesen
53c365d807 Handle sqrt in CannotBeNegativeZero. absf and absl 
appear to be misspellings, removed in favor of fabs*.

llvm-svn: 82796
 2009-09-25 20:54:50 +00:00
Dan Gohman
78b99e3761 Teach ValueTracking how to look through GlobalAliases. GlobalAliases are 
not folded in the constant folder because the constant folder doesn't
simplify ConstantExpr operands.

llvm-svn: 81864
 2009-09-15 16:14:44 +00:00
Chris Lattner
37dbbde91b fix ComputeMaskedBits handling of zext/sext/trunc to work with vectors. 
This fixes PR4905

llvm-svn: 81174
 2009-09-08 00:13:52 +00:00
Chris Lattner
1247f36e13 add some comments to describe the invariants. 
llvm-svn: 81173
 2009-09-08 00:06:16 +00:00
Torok Edwin
31cf28eefd Fix DbgStopPointInst->getFileName/getDirectory, broken by the MDNodification in 
r80406, and readd a -print-dbginfo test.

llvm-svn: 80778
 2009-09-02 11:13:56 +00:00
Dan Gohman
d3d03c966f Handle TargetData with const. 
llvm-svn: 80262
 2009-08-27 17:51:25 +00:00
Dan Gohman
ba656de4a4 Use hasDefinitiveInitializer() instead of testing the same thing 
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.

llvm-svn: 79441
 2009-08-19 18:20:44 +00:00